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You searched for: geology Remove constraint geology Genre Aerial imagery Remove constraint Genre: Aerial imagery Creator Illinois State Geological Survey Remove constraint Creator: Illinois State Geological Survey Public/Restricted Public Remove constraint Public/Restricted: Public Subject Geoscientific Information Remove constraint Subject: Geoscientific Information
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1. Driftless Areas: Illinois, 2004

1994. Illinois State Geological Survey. This is a polygon feature class containing driftless areas in Illinois. These areas are analogous to areas of the state where the bedrock surface i...
illinois

2. Woodfordian Moraines of Illinois, 2004

1991. Illinois State Geological Survey. This is an SDE polygon feature class containing named Woodfordian moraines, or Wisconsinan end moraines, of Illinois. Scale is 1:500,000. The prima...
illinois

3. Major Bedrock Valleys: Illinois, 2004

1994. Illinois State Geological Survey. This feature dataset shows continuous lines representing the lowermost elevations/locations of (buried) bedrock valleys in the state of Illinois. A...